由于奥巴马看似不可战胜，诸如印第安纳州州长米奇·丹尼尔斯，密西西比州州长巴博，新泽西州州长克里斯蒂，德克萨斯州州长瑞克·派瑞这些颇受追捧的州长并未参加提名选举。

Popular governors such as Mitch Daniels of Indiana, Haley Barbour of Mississippi, Chris Christie of New Jersey and Rick Perry of Texas chose not to run when Mr Obama looked unbeatable.

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